Perhaps you should try some spelling variations:
"literatura isabel de isla." » "literatura arabe de isla.", "literatura imanol de isla.", "literatura diamela de isla.", "literatura isabel de isaac."
"literatura de de islam." » "literatura de del islam.", "literatura de e islam.", "literatura de de islas.", "literatura de de isaacm.", "literatura de fe islam.", "literatura de di islam."
"literatura de de ilam." » "literatura de de chilam.", "literatura de fe ilam.", "literatura de di ilam."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura isabel de isla.") or ((("literatura de de ilam.") OR ("literatura de de islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura isabel de isla.") OR ((("literatura de de ilam.") OR ("literatura de de islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura isabel de isla.\") or (((\"literatura de de ilam.\") OR (\"literatura de de islam.\"))))".
• Removing quotes may allow a broader search: (( literatura isabel de isla. ) or ((( literatura de de ilam. ) OR ( literatura de de islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura isabel de isla.") or ((("literatura de de ilam.") OR ("literatura de de islam."))))*.